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Beijing Ward Yitong Technology Co., Ltd.

  • China,Qingdao
  • Verified Supplier
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China Pramet HSS DIN335C Standard 3 Flute 90° Countersink Drill Bit for Steel
China Pramet HSS DIN335C Standard 3 Flute 90° Countersink Drill Bit for Steel

  1. China Pramet HSS DIN335C Standard 3 Flute 90° Countersink Drill Bit for Steel
  2. China Pramet HSS DIN335C Standard 3 Flute 90° Countersink Drill Bit for Steel
  3. China Pramet HSS DIN335C Standard 3 Flute 90° Countersink Drill Bit for Steel

Pramet HSS DIN335C Standard 3 Flute 90° Countersink Drill Bit for Steel

  1. MOQ: 100
  2. Price: 2-10usd/pcs
  3. Get Latest Price
Heat resistance Up to 1000°C
Thread Profile Full 60° ISO Metric Thread
Bending Strength 2250
Packaging Details Carton with Bubble paper which is suitable for long-distance transport
Delivery Time 4weeks
Width 14.3mm
Payment Terms T/T
Overall Height 3.2 mm
Inscribed Circle 12.7 mm
Model Number HSS DIN335C
Brand Name PRAMET

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  1. Product Details
  2. Company Details

Product Specification

Heat resistance Up to 1000°C Thread Profile Full 60° ISO Metric Thread
Bending Strength 2250 Packaging Details Carton with Bubble paper which is suitable for long-distance transport
Delivery Time 4weeks Width 14.3mm
Payment Terms T/T Overall Height 3.2 mm
Inscribed Circle 12.7 mm Model Number HSS DIN335C
Brand Name PRAMET
High Light HSS DIN335C countersink drill bit3 flute chamfering drill bit90° deburring drill bit for steel

Product Overview

HSS DIN335C Pramet is a European standard precision 3-flute countersink manufactured under German DIN335C specification, developed for industrial screw head sinking, hole chamfering and metal deburring. Made of premium M2 high-speed steel with full CBN deep grinding treatment, this 90° conical countersink features three unequal convex cutting edges and straight cylindrical shank, effectively eliminating cutting vibration and burr residues. Compatible with drill presses, CNC milling centers, bench drills and automatic lathes, it performs consistently on carbon steel, stainless steel, cast iron, aluminum alloy and brass, widely adopted in automotive, mold, hydraulic and general hardware mass production.

Key Features
  1. DIN335C standard Form C heavy-duty structure, designed for deep countersinking of cross recessed bolts, hex socket screw heads
  2. Premium HSS high-speed steel substrate, balanced hardness and toughness, anti-edge chipping under medium feed continuous cutting
  3. 3 unequal optimized flutes, large chip space for smooth swarf evacuation, no chip clogging during long batch processing
  4. Full CBN precision grinding on all cutting surfaces, sharp cutting edge, chatter-free machining without vibration ripples on workpiece surface
  5. Standard 90° cone angle perfectly matches metric screw head taper; optional 60°/120° angles for special chamfer requirements
  6. h9 tolerance straight cylindrical shank, fits all standard ER collets, drill chucks and automatic tool holders without adapter modification
  7. Radial back-off clearance design reduces cutting friction, lowers feed resistance and extends overall tool service life
Technical Specifications
  • Full Model: HSS DIN335C
  • Brand: Pramet (Dormer Pramet Europe Cutting Tool Brand)
  • Executive Standard: DIN 335:2024 Form C
  • Raw Material: M2 High Speed Steel (HSS-Co cobalt HSS optional)
  • Flute Structure: 3 Unequal Convex Cutting Flutes
  • Standard Countersink Angle: 90°
  • Shank Style: Solid Cylindrical Straight Shank, Tolerance h9
  • Surface Treatment: Bright fully ground finish; TiN/TiAlN coating optional
  • Available Size Range: Nominal diameter 4.3mm ~ 40mm, matched standard shank diameter 4mm~16mm
  • Compatible Equipment: CNC machining center, vertical drill press, bench drill, CNC automatic lathe
Applicable Workpiece Materials

Mild carbon steel, alloy structural steel, 304/316 stainless steel, grey cast iron, ductile iron, aluminum alloy, brass, copper, hard engineering plastics

Typical Applications
Machining Processes

90° screw head countersinking, hole edge chamfering, cross-hole deburring, surface flash trimming, bolt hole recess processing

Industrial Workpieces
  1. Automotive manufacturing: engine housing bolt hole sinking, chassis fastener countersinking, brake fitting hole deburring
  2. Mold industry: mold base assembly screw chamfering, mold plate positioning hole edge finishing
  3. Hydraulic & pneumatic hardware: valve body connecting hole deburr, miniature pipe joint screw head countersink
  4. General machinery: gear blank, shaft sleeve, equipment frame bolt hole batch chamfer processing
  5. Precision metal fabrication: thin-wall aluminum alloy parts, stainless steel fixture hole burr removal

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Exporter

  • Year Established:

    2005

  • Total Annual:

    10000000-50000000

  • Employee Number:

    >50

  • Ecer Certification:

    Verified Supplier

For over 20 years, Trek Brand has been dedicated to the business of cutting tools. Our main focus is on wholesale distribution of renowned brands such as Walter, Hoffman, Mitsubishi, Taegutec, Tungaloy, OSG, and most importantly, China. We offer a comprehensive one-stop shopping experience for CNC c... For over 20 years, Trek Brand has been dedicated to the business of cutting tools. Our main focus is on wholesale distribution of renowned brands such as Walter, Hoffman, Mitsubishi, Taegutec, Tungaloy, OSG, and most importantly, China. We offer a comprehensive one-stop shopping experience for CNC c...

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  • Beijing Ward Yitong Technology Co., Ltd.
  • 1206# Shibei District Qingdao China
  • https://www.cuttingcarbidetools.com/

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